:root {
  color-scheme: light;
  --paper: #f1efe8;
  --paper-deep: #e7e2d8;
  --panel: #fbfaf6;
  --panel-strong: #ffffff;
  --ink: #173b31;
  --ink-deep: #102a23;
  --text: #273a35;
  --muted: #68756f;
  --line: #d3d5cd;
  --line-strong: #b8beb6;
  --brass: #9b7438;
  --brass-soft: #efe4cf;
  --danger: #a23f35;
  --danger-soft: #faece8;
  --success: #2e6c52;
  --shadow: 0 20px 55px rgba(20, 45, 37, 0.09);
  --radius: 6px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { min-width: 320px; background: var(--paper); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--sans);
  background:
    linear-gradient(rgba(23, 59, 49, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 59, 49, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
}

button, input, textarea { font: inherit; }

button, a { -webkit-tap-highlight-color: transparent; }

a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--brass); }

button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(155, 116, 56, 0.25);
  outline-offset: 2px;
}

[hidden] { display: none !important; }

.app-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 54px; }

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 2px 24px;
  border-bottom: 1px solid var(--line-strong);
}

.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid var(--ink);
  background: var(--panel);
}
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  background: var(--ink);
}
.brand-mark::before { width: 1px; height: 26px; left: 20px; top: 7px; }
.brand-mark::after { width: 26px; height: 1px; left: 7px; top: 20px; }
.brand-mark span {
  position: absolute;
  inset: 12px;
  border: 1px solid var(--brass);
  border-radius: 50%;
  background: var(--panel);
  z-index: 1;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; color: var(--ink-deep); font-size: clamp(22px, 3vw, 31px); line-height: 1.1; letter-spacing: -0.04em; }
h2 { margin-bottom: 8px; color: var(--ink-deep); font-size: 20px; letter-spacing: -0.025em; }
h3 { color: var(--ink-deep); font-size: 15px; }

.text-link, .back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 650; }
.back-link { text-decoration: none; white-space: nowrap; }
.admin-nav-actions { display: flex; align-items: center; gap: 18px; }

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 30px;
  align-items: end;
  padding: 34px 2px 22px;
}
.intro-copy { max-width: 690px; margin: 0; color: var(--muted); line-height: 1.8; }
.specimen-id { color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; }

.tabs { display: flex; gap: 2px; margin: 0 0 12px; border-bottom: 1px solid var(--line-strong); }
.tab {
  position: relative;
  border: 0;
  padding: 12px 18px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}
.tab::after { content: ""; position: absolute; height: 3px; left: 18px; right: 18px; bottom: -2px; background: transparent; }
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--ink); }
.tab.is-active::after { background: var(--brass); }

.workbench, .admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  min-height: 470px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.input-deck, .report-deck, .panel { padding: clamp(24px, 4vw, 42px); }
.report-deck { border-left: 1px solid var(--line-strong); background: rgba(255,255,255,.46); }

.section-number { margin-bottom: 28px; color: var(--brass); font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.field-label { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 10px; color: var(--ink-deep); font-size: 13px; font-weight: 750; }
.field-meta { color: var(--muted); font-family: var(--mono); font-size: 11px; font-weight: 400; }

textarea, input[type="text"], input[type="password"], input:not([type]) {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 13px 14px;
  color: var(--ink-deep);
  background: var(--panel-strong);
  transition: border-color .15s ease, box-shadow .15s ease;
}
textarea:focus, input:focus { border-color: var(--brass); box-shadow: 0 0 0 3px rgba(155, 116, 56, .10); outline: none; }
::placeholder { color: var(--line-strong); opacity: 1; }
input::placeholder, textarea::placeholder { color: var(--line-strong); opacity: 1; }
textarea { min-height: 172px; resize: vertical; font-family: var(--mono); font-size: 15px; line-height: 1.7; letter-spacing: .025em; text-transform: uppercase; }

.field-help { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.action-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 24px; }

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  padding: 10px 18px;
  color: #fff;
  background: var(--ink);
  cursor: pointer;
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.button:hover { color: #fff; background: var(--ink-deep); transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.button:disabled { opacity: .55; cursor: wait; transform: none; }
.button-secondary { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.button-secondary:hover { border-color: var(--ink); color: var(--ink); background: rgba(23,59,49,.04); }
.button-quiet { min-height: auto; border: 0; padding: 5px 0; color: var(--muted); background: transparent; }
.button-quiet:hover { color: var(--brass); background: transparent; transform: none; }

.status-line { min-height: 22px; margin: 14px 0 0; font-size: 13px; line-height: 1.6; }
.status-line.is-error { color: var(--danger); }
.status-line.is-success { color: var(--success); }

.report-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 26px; }
.report-state { padding: 5px 8px; border: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.report-state.is-ready { border-color: rgba(46,108,82,.38); color: var(--success); background: rgba(46,108,82,.055); }

.metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line); }
.metric { min-height: 145px; padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric-index { display: block; margin-bottom: 20px; color: var(--brass); font-family: var(--mono); font-size: 10px; }
.metric-label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 12px; }
.metric-value { display: block; color: var(--ink-deep); font-family: var(--mono); font-size: clamp(19px, 2.4vw, 27px); font-weight: 650; line-height: 1.35; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.metric-value.is-formula { font-size: clamp(15px, 2vw, 21px); }
.metric-unit { margin-left: 5px; color: var(--muted); font-size: 11px; font-weight: 400; }

.report-note { display: flex; gap: 10px; margin: 22px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.report-note::before { content: "i"; flex: 0 0 18px; height: 18px; border: 1px solid var(--line-strong); border-radius: 50%; text-align: center; font-family: serif; line-height: 17px; }

.batch-panel { min-height: 420px; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: clamp(24px, 4vw, 42px); background: var(--panel); box-shadow: var(--shadow); }
.batch-layout { display: grid; grid-template-columns: minmax(0, .85fr) minmax(380px, 1.15fr); gap: 46px; }
.upload-zone { position: relative; display: grid; min-height: 220px; place-items: center; border: 1px dashed var(--line-strong); padding: 28px; text-align: center; background: rgba(255,255,255,.35); }
.upload-zone.is-dragging { border-color: var(--brass); background: var(--brass-soft); }
.upload-icon { width: 52px; height: 52px; margin: 0 auto 16px; border: 1px solid var(--ink); color: var(--ink); font: 24px/49px var(--mono); }
.upload-zone input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.file-name { margin: 10px 0 0; color: var(--ink); font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }

.batch-readout { border-top: 1px solid var(--line-strong); }
.readout-row { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.readout-label { color: var(--muted); }
.readout-value { color: var(--ink-deep); font-family: var(--mono); font-variant-numeric: tabular-nums; }
.progress-track { height: 5px; margin: 24px 0 12px; overflow: hidden; background: var(--paper-deep); }
.progress-bar { width: 0; height: 100%; background: var(--brass); transition: width .25s ease; }
.error-box { margin-top: 20px; border-left: 3px solid var(--danger); padding: 15px 18px; background: var(--danger-soft); color: var(--danger); font-size: 12px; }
.error-box ul { margin: 10px 0 0; padding-left: 18px; }

.sequence-workbench, .results-section {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 42px);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.section-heading, .results-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-heading .section-number, .results-heading .section-number { margin-bottom: 8px; }
.section-heading h2, .results-heading h2 { margin-bottom: 0; font-size: clamp(20px, 2.5vw, 26px); }
.amino-search { display: grid; grid-template-columns: 210px minmax(0, 520px); gap: 8px 18px; align-items: center; justify-content: start; margin-bottom: 24px; }
.amino-search > label { color: var(--ink-deep); font-size: 13px; font-weight: 750; }
.search-control { position: relative; }
.search-control input { width: 100%; border: 1px solid var(--line-strong); border-radius: 3px; padding: 13px 14px; color: var(--ink-deep); background: var(--panel-strong); }
.search-results { position: absolute; z-index: 20; top: calc(100% + 5px); right: 0; left: 0; max-height: 270px; overflow: auto; border: 1px solid var(--line-strong); background: var(--panel-strong); box-shadow: 0 16px 36px rgba(16,42,35,.16); }
.search-option { display: grid; grid-template-columns: minmax(70px, .6fr) minmax(120px, 1.2fr) auto; gap: 14px; align-items: center; width: 100%; border: 0; border-bottom: 1px solid var(--line); padding: 12px 14px; text-align: left; background: transparent; color: var(--text); cursor: pointer; }
.search-option:last-child { border-bottom: 0; }
.search-option:hover, .search-option[aria-selected="true"] { background: var(--brass-soft); }
.search-option span:first-child { color: var(--ink-deep); font-family: var(--mono); font-weight: 700; }
.search-option span:nth-child(2) { color: var(--muted); font-family: var(--mono); font-size: 12px; text-align: right; }
.search-option .manual-tag { font-family: var(--sans); font-size: 11px; font-weight: 600; color: #b45309; background: #fef3c7; border: 1px solid #fde68a; border-radius: 999px; padding: 2px 8px; white-space: nowrap; }
.search-status { grid-column: 2; margin: 0; }
.sequence-workbench textarea { min-height: 190px; text-transform: none; }
.primary-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; white-space: nowrap !important; }
.file-button { cursor: pointer; }
.batch-strip { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(160px, auto); gap: 14px 20px; align-items: center; margin-top: 4px; padding: 16px 0 0; border-top: 1px solid var(--line); font-size: 12px; }
.batch-strip p { margin: 0; color: var(--muted); line-height: 1.6; }
.batch-strip .file-name { margin: 0; text-align: right; }
.batch-strip .progress-track { grid-column: 1 / -1; margin: 0; }
.results-section { margin-top: 28px; }
.results-table { min-width: 940px; table-layout: auto; }
.results-table th, .results-table td { text-align: center; }
.results-table th:nth-child(1), .results-table td:nth-child(1) { width: 80px; }
.results-table td:nth-child(2) { min-width: 260px; max-width: 380px; text-align: left; font-family: var(--mono); white-space: normal; overflow-wrap: anywhere; }
.results-table td { font-variant-numeric: tabular-nums; }
.results-table .row-error td { color: var(--danger); background: var(--danger-soft); }
.pagination { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-top: 18px; color: var(--muted); font-size: 12px; }
.pagination select { margin: 0 4px; border: 1px solid var(--line-strong); border-radius: 2px; padding: 6px 24px 6px 8px; color: var(--ink); background: var(--panel-strong); }
.page-buttons { display: flex; align-items: center; gap: 6px; }
.page-buttons button { border: 1px solid var(--line-strong); border-radius: 2px; padding: 7px 10px; color: var(--ink); background: var(--panel-strong); cursor: pointer; }
.page-buttons button:hover:not(:disabled) { border-color: var(--brass); }
.page-buttons button:disabled { opacity: .45; cursor: not-allowed; }
.page-number.is-active { border-color: var(--ink); color: #fff; background: var(--ink); }

.admin-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); min-height: 0; }
.admin-grid .panel + .panel { border-left: 1px solid var(--line-strong); }
.panel-copy { min-height: 60px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.form-grid { display: grid; gap: 18px; }
.field label { display: block; margin-bottom: 8px; color: var(--ink-deep); font-size: 12px; font-weight: 700; }

.data-section { margin-top: 26px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.data-header { display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 22px 26px; border-bottom: 1px solid var(--line-strong); }
.data-header h2 { margin: 0; }
.record-count { color: var(--muted); font-family: var(--mono); font-size: 11px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 15px 24px; border: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
td { color: var(--text); font-size: 13px; }
td:first-child, td:last-child { font-family: var(--mono); }
tbody tr:hover { background: rgba(155,116,56,.045); }
.empty-row { padding: 36px; color: var(--muted); text-align: center; }

.admin-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding: 20px 26px; border-bottom: 1px solid var(--line); }
.admin-search { flex: 1; max-width: 520px; }
.admin-search span, .page-size-control { color: var(--muted); font-size: 12px; }
.admin-search input { margin-top: 8px; }
.page-size-control select { margin-left: 6px; border: 1px solid var(--line-strong); border-radius: 2px; padding: 7px 22px 7px 8px; color: var(--ink); background: var(--panel-strong); }
.row-actions { display: flex; gap: 12px; }
.row-action { border: 0; padding: 4px 0; color: var(--ink); background: transparent; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.row-action:hover { color: var(--brass); }
.row-action.is-danger { color: var(--danger); }
.button-danger { border-color: var(--danger); background: var(--danger); }
.button-danger:hover { border-color: var(--danger); background: var(--danger); filter: brightness(.94); }
.confirm-dialog { width: min(460px, calc(100% - 32px)); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 28px; color: var(--text); background: var(--panel); box-shadow: var(--shadow); }
.confirm-dialog::backdrop { background: rgba(16, 42, 35, .42); }
.confirm-dialog .section-number { margin-bottom: 14px; }
.confirm-dialog h2 { margin-bottom: 12px; }
.confirm-dialog p { color: var(--muted); line-height: 1.7; }

/* Special amino-acid admin: list-first management workspace. */
.admin-page-header { display: flex; align-items: end; justify-content: space-between; gap: 24px; padding: 34px 2px 22px; }
.admin-page-header .section-number { margin-bottom: 10px; }
.admin-page-header h2 { margin-bottom: 8px; font-size: clamp(23px, 3vw, 29px); }
.admin-page-header p:not(.section-number) { max-width: 680px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.admin-page-header .button { flex: 0 0 auto; }
.admin-data-section { margin-top: 0; }
.admin-toolbar { align-items: end; display: grid; grid-template-columns: minmax(220px, 1fr) auto auto; padding: 18px 22px; }
.admin-search { max-width: none; }
.admin-search input { width: 100%; margin-top: 7px; border: 1px solid var(--line-strong); border-radius: 3px; padding: 10px 12px; color: var(--ink-deep); background: var(--panel-strong); }
.page-size-control { display: inline-flex; align-items: center; min-height: 42px; white-space: nowrap; }
.admin-toolbar-actions { display: flex; align-items: center; gap: 9px; }
.admin-toolbar-actions .button { min-height: 38px; padding: 8px 12px; }
.data-header { padding: 17px 22px; }
.table-wrap table { min-width: 720px; }
.table-wrap th, .table-wrap td { padding: 14px 18px; }
.table-wrap td:last-child { text-align: right; }
.table-wrap th:last-child { text-align: right; }
.row-actions { justify-content: flex-end; }
.row-action { min-height: 32px; padding: 4px 2px; font-weight: 650; }
.pagination { padding: 16px 22px 20px; border-top: 1px solid var(--line); }

/* Structure status + value source badges (list table + editor drawer). */
.status-badge,
.source-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 22px;
  padding: 1px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.5);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  vertical-align: middle;
}

/* Structure status: 结构有效 / 结构无效 / 缺少结构 / 不可成肽 */
.status-badge.is-valid { border-color: rgba(46,108,82,.4); color: var(--success); background: rgba(46,108,82,.055); }
.status-badge.is-invalid { border-color: rgba(162,63,53,.4); color: var(--danger); background: var(--danger-soft); }
.status-badge.is-missing { border-color: var(--line-strong); color: var(--muted); background: rgba(255,255,255,.5); }
.status-badge.is-not-connectable { border-color: rgba(155,116,56,.4); color: var(--brass); background: var(--brass-soft); }

/* Value source: 系统计算（中性灰绿） / 人工校正（琥珀） */
.source-badge.is-system { border-color: rgba(104,117,111,.35); color: var(--muted); background: rgba(104,117,111,.10); }
.source-badge.is-override { border-color: rgba(155,116,56,.4); color: var(--brass); background: var(--brass-soft); }

/* Unknown fallback: 未知状态 / 未知来源（中性样式）。 */
.status-badge.is-unknown,
.source-badge.is-unknown { border-color: var(--line-strong); color: var(--muted); background: rgba(255,255,255,.5); }

/* Editor drawer structure preview + manual overrides. */
.button-block { width: 100%; margin-top: 12px; }
.override-panel {
  margin: 0;
  padding: 16px 16px 2px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.4);
}
.override-panel legend {
  padding: 0 8px;
  color: var(--ink-deep);
  font-size: 12px;
  font-weight: 700;
}
.system-readout { border-top: 1px solid var(--line-strong); }
.system-readout .readout-row { grid-template-columns: 88px 1fr; padding: 10px 0; font-size: 12px; }
.drawer-form .field { margin-bottom: 0; }

.drawer-backdrop { position: fixed; z-index: 60; inset: 0; background: rgba(16, 42, 35, .38); backdrop-filter: blur(2px); }
.admin-drawer { position: fixed; z-index: 61; top: 0; right: 0; bottom: 0; display: flex; width: min(430px, 100vw); flex-direction: column; overflow-y: auto; padding: 26px; border-left: 1px solid var(--line-strong); color: var(--text); background: var(--panel); box-shadow: -18px 0 48px rgba(16, 42, 35, .18); transform: translateX(104%); transition: transform .2s ease; }
.admin-drawer[aria-hidden="false"] { transform: translateX(0); }
.drawer-header, .dialog-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.drawer-header .section-number, .dialog-header .section-number { margin-bottom: 8px; }
.drawer-header h2, .dialog-header h2 { margin: 0; font-size: 21px; }
.icon-button { display: inline-grid; width: 34px; height: 34px; place-items: center; border: 1px solid var(--line-strong); border-radius: 3px; color: var(--ink); background: var(--panel-strong); cursor: pointer; font-size: 21px; line-height: 1; }
.icon-button:hover { border-color: var(--ink); background: rgba(23, 59, 49, .04); }
.drawer-copy, .dialog-copy { margin: 18px 0 22px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.drawer-form { flex: 0 0 auto; align-content: start; }
.drawer-form .drawer-actions { margin-top: 4px; }
.drawer-actions, .dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: auto; padding-top: 22px; }
.drawer-actions .button, .dialog-actions .button { min-width: 108px; }
.has-admin-drawer { overflow: hidden; }

.import-dialog { width: min(560px, calc(100% - 28px)); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 0; color: var(--text); background: var(--panel); box-shadow: var(--shadow); }
.import-dialog::backdrop { background: rgba(16, 42, 35, .42); }
.dialog-shell { padding: 26px; }
.compact-upload { min-height: 168px; }
.import-dialog .upload-zone { cursor: pointer; }

@media (max-width: 600px) {
  .admin-page-header { align-items: stretch; flex-direction: column; padding: 26px 2px 18px; }
  .admin-page-header .button { width: 100%; }
  .admin-toolbar { grid-template-columns: 1fr; gap: 12px; padding: 16px 18px; }
  .page-size-control { justify-content: space-between; }
  .admin-toolbar-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .admin-toolbar-actions .button { width: 100%; }
  .data-header { align-items: flex-start; flex-direction: column; gap: 8px; }
  .admin-drawer { width: 100%; padding: 22px 18px; }
  .drawer-actions, .dialog-actions { flex-direction: column-reverse; }
  .drawer-actions .button, .dialog-actions .button { width: 100%; }
  .dialog-shell { padding: 22px 18px; }
}

.footer { display: flex; justify-content: space-between; gap: 18px; margin-top: 22px; padding: 0 2px; color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .04em; }

.login-shell { display: grid; min-height: 100vh; place-items: center; width: min(920px, calc(100% - 36px)); margin: 0 auto; padding: 36px 0; }
.login-card { display: grid; grid-template-columns: .9fr 1.1fr; width: 100%; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.login-identity { position: relative; min-height: 500px; padding: 46px; color: rgba(255,255,255,.76); background: var(--ink-deep); }
.login-identity::after { content: "PC / SECURE"; position: absolute; right: 38px; bottom: 32px; color: rgba(255,255,255,.38); font: 10px var(--mono); letter-spacing: .12em; }
.login-identity .brand-mark { margin-bottom: 84px; border-color: rgba(255,255,255,.66); background: transparent; }
.login-identity .brand-mark::before, .login-identity .brand-mark::after { background: rgba(255,255,255,.66); }
.login-identity .brand-mark span { background: var(--ink-deep); }
.login-identity h1 { margin-bottom: 18px; color: #fff; }
.login-identity p:not(.eyebrow) { line-height: 1.8; }
.login-identity .back-link { position: absolute; left: 46px; bottom: 40px; color: rgba(255,255,255,.74); }
.login-form-panel { display: flex; flex-direction: column; justify-content: center; padding: clamp(34px, 6vw, 70px); }
.login-form-panel h2 { margin-bottom: 32px; font-size: 25px; }
.login-form-panel .button { margin-top: 8px; }

@media (max-width: 880px) {
  .workbench, .admin-grid, .batch-layout { grid-template-columns: 1fr; }
  .report-deck, .admin-grid .panel + .panel { border-left: 0; border-top: 1px solid var(--line-strong); }
  .batch-layout { gap: 30px; }
  .intro { grid-template-columns: 1fr; gap: 10px; }
  .specimen-id { display: none; }
  .login-card { grid-template-columns: 1fr; }
  .login-identity { min-height: 250px; padding: 32px; }
  .login-identity .brand-mark { margin-bottom: 42px; }
  .login-identity .back-link { left: auto; right: 28px; bottom: 26px; }
  .amino-search { grid-template-columns: 1fr; }
  .search-status { grid-column: 1; }
  .batch-strip { grid-template-columns: 1fr auto; }
  .batch-strip .file-name { grid-column: 1 / -1; text-align: left; }
}

@media (max-width: 600px) {
  .app-shell { width: min(100% - 22px, 1180px); padding-top: 16px; }
  .masthead { align-items: flex-start; }
  .masthead:has(.admin-nav-actions) { flex-direction: column; gap: 16px; }
  .admin-nav-actions { width: 100%; justify-content: flex-end; }
  .admin-nav-actions .button { width: auto; }
  .brand-mark { width: 36px; height: 36px; }
  .brand-mark::before { height: 22px; left: 17px; top: 6px; }
  .brand-mark::after { width: 22px; left: 6px; top: 17px; }
  .brand-mark span { inset: 10px; }
  .masthead .text-link { font-size: 0; }
  .masthead .text-link::after { content: "管理"; font-size: 12px; }
  .intro { padding-top: 26px; }
  .tabs { overflow-x: auto; }
  .tab { flex: 1; white-space: nowrap; }
  .input-deck, .report-deck, .panel, .batch-panel { padding: 23px 18px; }
  .metrics { grid-template-columns: 1fr; }
  .metric { min-height: 116px; }
  .action-row { align-items: stretch; flex-direction: column-reverse; }
  .button { width: 100%; }
  .form-actions { flex-direction: column; }
  .form-actions .button { width: 100%; }
  .admin-toolbar { align-items: stretch; flex-direction: column; }
  .admin-search { max-width: none; }
  .row-actions { gap: 0; justify-content: space-between; }
  .row-action { min-height: 40px; display: inline-flex; align-items: center; }
  .readout-row { grid-template-columns: 95px 1fr; gap: 12px; }
  .data-header { padding: 18px; }
  th, td { padding: 13px 18px; }
  .footer { flex-direction: column; }
  .login-shell { width: min(100% - 22px, 920px); padding: 12px 0; }
  .login-identity { min-height: 230px; padding: 26px 24px; }
  .login-identity .brand-mark { margin-bottom: 30px; }
  .login-identity .back-link { left: 24px; right: auto; bottom: 22px; }
  .login-form-panel { padding: 32px 24px; }
  .sequence-workbench, .results-section { padding: 23px 18px; }
  .section-heading, .results-heading { align-items: flex-start; flex-direction: column; gap: 14px; }
  .results-heading .button { width: 100%; }
  .primary-actions { flex-direction: column; }
  .primary-actions .button { width: 100%; }
  .batch-strip { grid-template-columns: 1fr; }
  .batch-strip .file-name, .batch-strip .progress-track { grid-column: 1; }
  .pagination { align-items: flex-start; flex-direction: column; }
  .page-buttons { width: 100%; flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}